The Baltic Sea anomaly is a 60-metre diameter circular rock-like formation on the floor of the northern Baltic Sea, at the center of the Bothnian Sea, discovered by Peter Lindberg, Dennis Åsberg and their Swedish "Ocean X" diving team in June 2011. (Photo : YouTube/ Strange Mysteries)

An Alien craft, alleged to be a UFO, discovered five years ago by underwater explorers in the Baltic Sea in Europe is still puzzling scientists to this day. Apparently, no one has come close to identifying the large object situated on the ocean floor and, which is known for occasionally jamming electronic equipment.

Dubbed the "Baltic Seas Anomaly," the mysterious object has been likened to an alien UFO because of its futuristic-looking nature and round shape. A Swedish team behind the famous Ocean X, which is usually focused on finding submerged treasures, made the discovery back in 2011.

Professional diver Stefan Hogerborn told Yahoo that any electronic equipment would fail if passed over the UFO. He specifically mentioned a satellite phone, adding that it would stop working when the team was directly above the object.

Soon after passing the object and creating a 200 meters distance gap from it, Hogerborn said that the phone would turn on again. When brought back again, however, it would seize to work until when the team got away from the UFO.

The mysterious alien craft measures 61 meters wide and eight meters tall, making it one of the biggest crafts ever discovered. Strangely enough, scientists do not have a clue of what it could be.

Speculations point out that the UFO could be a sunken Russian ship. Other rumors suggest that it is a Nazi anti-submarine or a battleship gun turret, but the common truth about it is that no one knows yet what the craft is.

Paranormal enthusiasts committedly believe that the object is a UFO dubbed Roswell of the Ocean, but still, there is no evidence to support the UFO-resembling object as an alien ship. According to News.com.au, samples of the surrounding area were collected by the Ocean X team and presented to geologist Steve Weiner, who said that the samples contained man-made metals.

He described his findings as "metals which nature could not reproduce itself". Reports are now uncovering that the Ocean X team is fundraising for a second voyage into the deep oceans to uncover the submerged UFO mystery. The crew targets to raise $360,000 before setting out on the second voyage.